I have this is the engine turbo forum as well but I figured I would post here as well to hopefully get some more exposure.
Took the car out of storage from the winter and the battery wouldn't charge. The car would run after boosting but not restart after shutting down.
-Replaced battery. Car ran for 2 days then died. Figured alternator was shot.
-Took alternator in for a rebuild. They said it was completely shot and they couldn't rebuild it.
-Installed brand new alternator, charged battery, replaced terminals. Car dies 2 days later. Battery is dead.
The alternator isn't charging the battery and I don't know why. We are having another alternator overnighted here to eliminate the possibility that I got a bad one. Alternator wires maybe? Anybody have a clue?? Thanks guys.
corroded fusible link. the alt wire leads to a fusible link and the battery cable is on the other side of that 120AMP link. if there's not enough current going thru that, then the battery may not be getting a good charge. do you have a volt meter? you need to check the battery while the engine is running. at cold idle, you should be above 14.0 with a new alt and battery. the link is $3-$4, so not a big deal to replace.
The charging circuit for these cars is pretty straight forward. It does include fuses and fuse links. Fuse link 1 and 3 (engine compartment) are two things to check. Also fuse 11 (side car).
There is also an alternator relay (a-10x) under the hood as well.
With a volt meter check for voltage on terminal 1 of the alternator (Its the big one). Next check for voltage on the 2 pins that plug into the alternator. Pin 1 which is a red wire should have voltage all the time. Pin 2 should have voltage only when the key is one. Also make sure that the insulator for Pin one (the large one is in place.).
Take these reading and post the results and we can help you more once we have this information...
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another thing to check is the starter. I replaced mine and it will hold a charge for months now. I had the discharge issue for years and never knew what it was. It died a few years ago, and I replaced it and the discharge issue never happened again. I solved the issue by keeping the center dome light on off instead of auto which I traced with a multimeter checking for current draw. I found just by accident that the current draw fell to almost 0 when this switch was on off. Now that the starter is replaced, I can keep it in auto again
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